There is a class observation at my son's school tomorrow.

His glasses are for correcting astigmatism.

A passion that burns like fire drives me forward.

They are just a disorderly group of people, unable to accomplish anything.

This zoo is putting a lot of effort into the protection of endangered species.

He did his best to protect me from danger.

He built a hut in the forest.

This paper that has become useless can no longer be used.

She was raised by an overprotective mother.

She was raised by overprotective parents.